<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>权重练习1</title>
    <style>
        .nav li {
            color: red;
        }

       #pink {
            color: pink;
            font-weight: bold;
        }
        div{
            width: 300px;
            height: 300px;
            background-color:red ;
        }
        span{
            width: 300px;
            height: 300px;
            background-color:seagreen ;
            display: inline-block;
        }
    </style>
</head>

<body>
    <ul class="nav">
        <li id="pink">一二</li>
        <li>三四</li>
        <li>五六</li>
        <li>七八</li>
    </ul>
    <div>
        5656
    </div>
    <div>
        5656
    </div>
    <div>
        5656
    </div>
    <span>
        545454
    </span>
    <span>
        545454
    </span>
    <span>
        545454
    </span>
</body>

</html>